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/* lsmod.c: list the status of kernel modules.
Copyright (C) 2002 Rusty Russell, IBM Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <ctype.h>
#include <asm/unistd.h>
#include "testing.h"
static void print_usage(const char *progname)
{
fprintf(stderr, "Usage: %s\n", progname);
exit(1);
}
int main(int argc, char *argv[])
{
char line[4096];
FILE *file;
if (argc != 1)
print_usage("lsmod");
file = fopen("/proc/modules", "r");
if (!file) {
perror("Opening /proc/modules");
exit(1);
}
printf("Module Size Used by\n");
while (fgets(line, sizeof(line), file)) {
char *tok;
tok = strtok(line, " \t");
printf("%-19s", tok);
tok = strtok(NULL, " \t\n");
printf(" %8s", tok);
tok = strtok(NULL, " \t\n");
/* Null if no module unloading support. */
if (tok) {
printf(" %s", tok);
tok = strtok(NULL, "\n");
if (!tok)
tok = "";
/* New-style has commas, or -. If so,
truncate (other fields might follow). */
else if (strchr(tok, ',')) {
tok = strtok(tok, "\t ");
/* Strip trailing comma. */
if (tok[strlen(tok)-1] == ',')
tok[strlen(tok)-1] = '\0';
} else if (tok[0] == '-'
&& (tok[1] == '\0' || isspace(tok[1])))
tok = "";
printf(" %s", tok);
}
printf("\n");
}
fclose(file);
exit(0);
}
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